You didn't mention what kind of car you have or what disk brake setup you have, so I'll take a stab at giving a general description of a brake job.
Spindles bolt on first between the upper and lower ball joints. Tighten them up and put the cotter pins in while you have the room without the rotor.
Next, caliper bracket should bolt to the spindle with two bolts, don't quote me but I think these are tightened to 95 ft lbs.
Rotor should go on next, pack the bearings in there good with high-temp grease, usually the dark red stuff, install the seal with a driver or something suitable in the back of the rotor. Don't forget to grease the spindle a little to make the rotor slide on a little easier. Get the front bearing ready with the retainer, washer and spindle nut. Push the rotor on the spindle (don't be shy) and tighten up everything. Find the torque spec or the spindle nut, tighten down then check for too much drag. Usually back it off a little after it's been tightened down. Don't forget the cotter pin and dust cap.
Caliper can go on now. You may want to attach the front hose first so it's in the correct position before installation. Remember to lube the back of the pads a little to prevent noise. If you have a single-piston caliper, the caliper should sit on the caliper adapter sliders. If you have the pin type, grease up the pins. You can put the pads in and 'snap' the caliper in place.
Tighten down the retaining clips. Bleed the brakes, you should be done.
Or just see this link:
http://www.moparts.org/Tech/tech/pages/abody.html
